This paper presents optimal phasor measurement units (PMUs) placement algorithms for power system observability. The optimal placement problem (OPP) is formulated such that minimizing the number of PMU installations for full network observability. Three approaches, in this paper, are introduced aiming at reducing the computational burden in Optimal Placement problems. Depth First Search, Simula...

The knowledge of dynamic states of electrical machine, especially the relative rotor position and velocity, are very important for us to understand the machine performance and to possibly design advanced control systems. This paper addresses the state estimation problem of synchronous machines in power systems, both in deterministic and stochastic cases during small transients. The paper examin...

This paper presents a new framework of identifying cyber data attacks on synchrophasor measurements. We focus on detecting “unobservable” cyber data attacks that cannot be detected by any existing detection method that purely relies on measurements received at one time instant. Leveraging the approximate low-rank property of phasor measurement unit (PMU) data, we formulate the unobservable cybe...

The deployment of Phasor Measurement Units (PMUs) could support a new generation of wide area monitoring and situational awareness systems, but this has not yet occurred. Instead, PMU data exchange occurs through bi-lateral agreements, each reflecting substantial human involvement. Our work proposes a new model for PMU data sharing, based upon today’s cloud computing technology base. Cloud-base...

The concept of phasor measurement and its application in power system monitoring and control are introduced in this paper. The example of application of PMU in a Campus Wide Area Monitoring System (WAMS) is then elaborated. With the availability of synchrophasor data measurement, it makes possible to establish the power system monitoring by directly employing spectral analysis of power or phase...

This paper presents a review of the Phasor Measurement Units employed in the Modern Power Systems. Synchronized phasor measurements have advanced the power system monitoring, controlling, protecting and operating standards in the recent decades. Its potential can be used effectively in the process of upgrading the current power grids into smart grids. With these ideas in mind, a review on PMU i...

In this paper, Integer Programming based methodology is presented for the optimal placement of Phasor Measurement Unit (PMU) that minimizes the cost of installation and provide the entire power system observability. The concepts of zero injection buses are used in this paper for further reduction in number of PMUs. Integer Programming may produce multiple results if neighboring buses to zero in...

in this paper, an efficient and comprehensive hybrid intelligent technique for the optimal placement of phasor measurement units (pmus) is proposed to minimize the number of pmu installation subjected to full network observability. three main purposes of pmus output synchronous measurements are monitoring, control, and protection of power system. we have combined binary imperialistic competitio...